title: Treatment timing in orthodontics.
authors.affiliation: Orthodontic Department, Faculty of Dentistry, University of Toronto.
authors.forename: R
authors.initials: R
authors.lastname: Lang
mesh_terms: D002648:Child; D002675:Child, Preschool; D003818:Dentition, Mixed; D006801:Humans; D008310:Malocclusion / Q000145:classification / Q000628:therapy*; D009971:Orthodontics, Corrective; D009972:Orthodontics, Interceptive; D013997:Time Factors; D014094:Tooth, Deciduous